1.5T Head Neck Spine (HNS) Coil MCQA Setup

Personnel Requirements


Required Persons	Procedure
1	45 mins

Overview

Follow this process to prepare for the MCQA test.

Note:

The coil consists of five units: Posterior Head, Face, Chest, Horseshoe, and TL. This is done to ensure modularity in design and diagnostics. The MCQA test for the coil is conducted to three configurations: TL unit only, Posterior Head Chest Horseshoe TL, and Posterior Head Face.

Note:

Coils do not ship with phantoms. Phantoms come in a unified phantom set with the MR system.

Preliminary Requirements

Tools and Test Equipment

Table 1. Tools and Test Equipment Utilizing Unified Phantom Kit
Item	Quantity	Part #	Manufacturer
TL Unified Phantom	2	5343347	Dielectric
Large Cylindrical Unifed Phantom	1	5342679	Dielectric
Phantom Positioner HNS	1	5344844	Medical Comfort

Safety

No special safety requirement.

Required Conditions

The appropriate coil configuration file must be installed to run this tool. See “Section 4 - Coil Config” of the HNS Coil Installation Procedure document: 3282174.pdf.

Procedure

Coil Serial Numbers

Record the coil serial numbers for the Posterior Head, Chest, and Thorasic Lower (TL) components.

Table 2. Coil Serial Numbers
Posterior Head Component	Serial # __________________
Chest Component	Serial # __________________
Thorasic Lower Component	Serial # __________________

Legacy Phantom Setup

Note:

If installing the coil for the first time in a system, please refer to Auto Coil Install.

Note:

1.5T phantoms are green.

To position the coil in the cradle, connect the cable as shown in Figure 1:
Figure 1. Connecting the Coil
Remove the pads and place a phantom in the coil as shown in Figure 2.

Figure 2. Positioning Phantom for the TL Unit, Posterior Head Chest Horseshoe TL and Posterior Head Face Configurations of the HNS Coil

Note:
The MCQA tool can ONLY run on one individual mode connected at a time. The MCQA tool will not run with a combination of modes and will report that the configuration is invalid.
Landmark at the positions shown in Figure 3, Figure 4, and Figure 5, as the case may be.

Figure 3. TL Only Setup Landmarking

Figure 4. Posterior Head Chest Horseshoe TL Setup Landmarking

Figure 5. Posterior Head Face Setup Landmarking
Perform the Multi-Coil Quality Assurance Tool test.

HNS Unified Phantom MCQA Setup

Mode 1: Posterior Head Face Section

Place Posterior Head Face section on the table as shown in Figure 6.

Figure 6. Positioning the Posterior Head Face Section
Place HNS positioner and then place large cylindrical unified phantom on the positioner as shown in Figure 7.

Figure 7. Positioner and Large Cylindrical Unified Phantom
Carefully align the face component part of the coil with the connector pins over this posterior head face section and latch both the coil sections into place as shown in Figure 8. (The scanner will not operate if the coil sections are not latched correctly.)

Figure 8. Aligning Coil with Connector Pins
Connect the coil to the system LPCA.
Landmark the coil on the markings present on the face component indicated through arrows as shown in Figure 9 and press advance to scan.

Figure 9. Landmarking the Coil
Perform the Multi-Coil Quality Assurance Tool test.

Mode 2: Posterior Head Chest, Horseshoe and TL Section

Place the Posterior Head Face section, horseshoe adapter, and TL section of the coil on table as shown in Figure 10.

Figure 10. Positioning the Coil Components
Place the HNS phantom Positioner, large cylindrical unified phantom, and TL unified phantom as shown in Figure 11. The TL unified phantom shall be positioned over the junction of the TL section and head components.

Figure 11. Complete Setup
Ensure that TL unified phantom is in contact with the cylindrical unified phantom as shown in Figure 12.

Figure 12. TL Unified Phantom in Contact with Cylindrical Unified Phantom
Connect the chest part to the posterior head section as shown in Figure 13.

Figure 13. Connecting Chest Part to Positioner Head
Landmark on the markings over the chest section of the coil as indicated in Figure 14.

Figure 14. Landmarking Coil
Press advance to scan.
Perform the Multi-Coil Quality Assurance Tool test.

Mode 3: TL Section

Place the TL section of the HNS coil on the table as shown in Figure 15.

Figure 15. Positioning TL Section
Place TL unified phantoms on the TL section of the coil as shown in Figure 16.

Figure 16. Positioning Phantom on Coil
Align the TL unified phantoms properly in S/I direction and R/L direction of the TL section of the coil as shown in Figure 17.

Figure 17. Aligning the Unified Phantoms
Connect the coil to Port A of system LPCA.
Landmark on #5 present on the side of the TL section of the coil as shown in Figure 18 and press advance to scan.

Figure 18. Landmarking Coil
Perform the Multi-Coil Quality Assurance Tool test.